find a way to sharing init

+ vector.normalized()
+ misc

src/client/class/RectangleClient.ts

@@ -80,10 +80,10 @@ class BallClient extends Ball implements GraphicComponent {
 	color: string;
 	update: () => void;
 	clear: (pos?: VectorInteger) => void;
-	constructor(pos: VectorInteger, size: number, baseSpeed: number,
+	constructor(pos: VectorInteger, size: number, baseSpeed: number, speedIncrease: number,
 		ctx: CanvasRenderingContext2D, color: string)
 	{
-		super(pos, size, baseSpeed);
+		super(pos, size, baseSpeed, speedIncrease);
 		this.ctx = ctx;
 		this.color = color;
 		this.update = updateRectangle;